Talk:Conserved current

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[edit] Tautology alert

I came across this page following a link from "Noether's Theorem" and found this definition. I think I can intuit from the example what is meant, but can anybody come up with something pithy to define it without reference back to the theorem? Please forgive any breaches of etiquette, I'm very new. Toospaice 05:02, 22 June 2007 (UTC)

Thank you for your interest and participation. The lead is talking about why the notion of conserved current is important. The definition is given by the formula below that:

\frac{\partial \rho} {\partial t} + \nabla \cdot \mathbf{J} = 0
In words, there is a quantitative attribute (like electric charge or energy) which can move around, but can never appear from nothing nor disappear to nothing. OK? JRSpriggs 09:02, 22 June 2007 (UTC)

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This article was automatically assessed because at least one WikiProject had rated the article as stub, and the rating on other projects was brought up to Stub class. BetacommandBot 09:46, 10 November 2007 (UTC)